| http://www.w3.org/ns/prov#value | - In particular, where output of the identity of the actual caller or actual callee is blocked, display of other context information may not be blocked, such that context for the call may be provided without revealing the actual identity of the caller or callee. [0081] Telephony devices 8 a-8 n are communicatively connected to PSTN 10 via wireline, wireless, ISDN, and other communication links.
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